/*
 * #%L
 * Fork of JAI Image I/O Tools.
 * %%
 * Copyright (C) 2008 - 2015 Open Microscopy Environment:
 *   - Board of Regents of the University of Wisconsin-Madison
 *   - Glencoe Software, Inc.
 *   - University of Dundee
 * %%
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 * 
 * 1. Redistributions of source code must retain the above copyright notice,
 *    this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright notice,
 *    this list of conditions and the following disclaimer in the documentation
 *    and/or other materials provided with the distribution.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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/*
 * $RCSfile: BitsPerComponentBox.java,v $
 *
 * 
 * Copyright (c) 2005 Sun Microsystems, Inc. All  Rights Reserved.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met: 
 * 
 * - Redistribution of source code must retain the above copyright 
 *   notice, this  list of conditions and the following disclaimer.
 * 
 * - Redistribution in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in 
 *   the documentation and/or other materials provided with the
 *   distribution.
 * 
 * Neither the name of Sun Microsystems, Inc. or the names of 
 * contributors may be used to endorse or promote products derived 
 * from this software without specific prior written permission.
 * 
 * This software is provided "AS IS," without a warranty of any 
 * kind. ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND 
 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, 
 * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY
 * EXCLUDED. SUN MIDROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL 
 * NOT BE LIABLE FOR ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF 
 * USING, MODIFYING OR DISTRIBUTING THIS SOFTWARE OR ITS
 * DERIVATIVES. IN NO EVENT WILL SUN OR ITS LICENSORS BE LIABLE FOR 
 * ANY LOST REVENUE, PROFIT OR DATA, OR FOR DIRECT, INDIRECT, SPECIAL,
 * CONSEQUENTIAL, INCIDENTAL OR PUNITIVE DAMAGES, HOWEVER CAUSED AND
 * REGARDLESS OF THE THEORY OF LIABILITY, ARISING OUT OF THE USE OF OR
 * INABILITY TO USE THIS SOFTWARE, EVEN IF SUN HAS BEEN ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGES. 
 * 
 * You acknowledge that this software is not designed or intended for 
 * use in the design, construction, operation or maintenance of any 
 * nuclear facility. 
 *
 * $Revision: 1.1 $
 * $Date: 2005/02/11 05:01:31 $
 * $State: Exp $
 */
 
package com.sun.media.imageioimpl.plugins.jpeg2000;

import javax.imageio.metadata.IIOInvalidTreeException;
import javax.imageio.metadata.IIOMetadataNode;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;

/** This class is defined to represent a Bits Per Component Box of JPEG
 *  JP2 file format.  A Bits Per Component box has a length, and a fixed
 *  type of "bpcc".  Its content is a byte array containing the bit
 *  depths of the color components.
 *
 *  This box is necessary only when the bit depth are not identical for all
 *  the components.
 */
public class BitsPerComponentBox extends Box {
    /** Counstructs a <code>BitsPerComponentBox</code> from the provided
     *  byte array containing the bit depths of each color component.
     */
    public BitsPerComponentBox(byte[] bitDepth) {
        super(8 + bitDepth.length,  0x62706363, null);
        data = bitDepth;
    }

    /** Constructs a <code>BitsPerComponentBox</code> based on the provide
     *  <code>org.w3c.dom.Node</code>.
     */
    public BitsPerComponentBox(Node node) throws IIOInvalidTreeException {
        super(node);
        NodeList children = node.getChildNodes();
       
        for (int i = 0; i < children.getLength(); i++) {
            Node child = children.item(i);
            String name = child.getNodeName();
           
            if ("BitDepth".equals(name)) {
                data = Box.getByteArrayElementValue(child);
            }
        }
    }

    /** Returns the bit depths for all the image components. */
    public byte[] getBitDepth() {
        return data;
    }
}
